diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/optee/Kconfig | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/lib/optee/Kconfig b/lib/optee/Kconfig index e6834d4d3e1..34b9d8afe67 100644 --- a/lib/optee/Kconfig +++ b/lib/optee/Kconfig @@ -4,6 +4,25 @@ config OPTEE_LIB help Selecting this option will enable the shared OPTEE library code. +config HAS_TEE_IN_BUILD_ENV + def_bool $(success, test -n "$(TEE)") + select OPTEE_LIB if OF_CONTROL + select OF_LIBFDT if OF_CONTROL + help + It is typical whenever OP-TEE OS is loaded before U-Boot proper that + it modifies the FDT passed to U-Boot proper to add reserved-memory + nodes for the RAM it just reserved for itself. + + U-Boot must copy those reserved-nodes in the FDT for the next OS to + boot. + + Failing to do so will incur random crashes or device reboots once the + next OS is running. + + This makes sure that whenever TEE is present in the environment, + meaning a TEE OS will be part of the boot flow, the copy made by the + OP-TEE lib will happen. + config OPTEE_IMAGE bool "Support OPTEE images" help |